Hardware accelerated CRC32 implementation. More...

#include <arm_acle.h>
#include "../types.h"

Macros
#define	_CRC_ALIGN(sz, insn)

#define	_CRC_REMAINDER(sz, insn)

Functions
static u32	crc32CalculateWithSeed (u32 seed, const void *src, size_t size)
	Calculate a CRC32 over data using a seed. More...

static u32	crc32Calculate (const void *src, size_t size)
	Calculate a CRC32 over data.

static u32	crc32cCalculateWithSeed (u32 seed, const void *src, size_t size)
	Calculate a CRC32C over data using a seed. More...

static u32	crc32cCalculate (const void *src, size_t size)
	Calculate a CRC32C over data.

Detailed Description

Hardware accelerated CRC32 implementation.

Copyright: libnx Authors

Macro Definition Documentation

◆ _CRC_ALIGN

#define _CRC_ALIGN	(	sz,
		insn
	)

Value:

do { \
    if (((uintptr_t)src_u8 & sizeof(sz)) && (u64)len >= sizeof(sz)) { \
        crc = __crc32##insn(crc, *((const sz *)src_u8)); \
        src_u8 += sizeof(sz); \
        len -= sizeof(sz); \
    } \
} while (0)

◆ _CRC_REMAINDER

#define _CRC_REMAINDER	(	sz,
		insn
	)

Value:

do { \
    if (len & sizeof(sz)) { \
        crc = __crc32##insn(crc, *((const sz *)src_u8)); \
        src_u8 += sizeof(sz); \
    } \
} while (0)

Function Documentation

◆ crc32CalculateWithSeed()

static u32 crc32CalculateWithSeed	(	u32	seed,
		const void *	src,
		size_t	size
	)

inlinestatic

Calculate a CRC32 over data using a seed.

Can be used to calculate a CRC32 in chunks using an initial seed of zero for the first chunk.

◆ crc32cCalculateWithSeed()

static u32 crc32cCalculateWithSeed	(	u32	seed,
		const void *	src,
		size_t	size
	)

inlinestatic

Calculate a CRC32C over data using a seed.

Can be used to calculate a CRC32C in chunks using an initial seed of zero for the first chunk.

Macros